Diabetes is known as the “undead cancer”, which shows how great its impact on human health. The sustainable economic and social development has not only improved people’s living standards, but also created a group of diabetic patients, the reason is that the standard of living has improved, there are more obese people, and obesity is the main factor triggering diabetes. From a normal person to a diabetic person is not a one-time process, but there is a process, and this process is the pre-diabetes, and the pre-diabetes can actually be reversed. Pre-diabetes is a state between diabetes and normoglycemia, a necessary stage of diabetes, and an early warning sign of diabetes. Pre-diabetes is judged by a postprandial blood sugar of 7.8-11.1mmol/L or a fasting blood sugar of 6.1-7.0mmol/L. If blood sugar is found to be within this range, and if it is not controlled and regulated, it will soon become a real “cancer” patient. In order to avoid pre-diabetes to become a diabetic, it is necessary to do the following: 1, weight loss work to do, now people commonly appear obese phenomenon, and obesity is the main factor other than genetic factors, causing diabetes. 2, usually do not drink drinks, do not drink alcohol. Ensure that eighty to ninety percent full, fish, meat, eggs and milk nutritional intake ratio to be reasonable, cooking method less fried cooking fry, more steam stewing stewing method, less oil, less salt and less sugar. Increase the intake of fresh vegetables, the best raw food. 3, more exercise, moderate exercise can help to reduce weight, help to improve the function of the pancreas, to prevent blood sugar continues to rise is beneficial. 4, try to reduce sedentary, because the sedentary time more and more visceral fat will affect the secretion and metabolism of the internal organs. Do not eat snacks before going to bed, try to eat less sweets, oil and sugar content is too high. 5, usually pay attention to ensure adequate sleep time, do not stay up for a long time; in the mood is also necessary to maintain stability, avoid too much fluctuation.